Yard signs help warn Fourth of July revelers of combat vets' PTSD

“It’s hell,” says medically retired staff sergeant Russell Cook of July 4th fireworks. “It’s like I was back in the worst part of combat, with bullets flying and bombs going off.”
http://www.stripes.com/news/yard-signs-help-warn-fourth-of-july-revelers-of-combat-vets-ptsd-1.354234